Tire tread and buttress



FIG. 1 is a perspective view of a tire tread and buttress showing my new design, it being understood that the pattern is repeated throughout the circumference of the tread and buttress;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a side elevation view thereof, the opposite side being a mirror image of that shown; and

FIG. 4 is an enlarged fragmentary front elevation view thereof. 

The ornamental design for a tire tread and buttress, as shown and described. 